900 / 4.75 = 189.47 damage per hit. divided by 1.25 (bird bonus) that's 150. if base damage is around 130, this would mean that cRatio is around 1.154, which vs birds is around 490 ATT. so, you need more ATT (or, if your ATT is usually much higher than 500 or if mages regularly diaII/III like they should, you need more ACC and are missing too many hits, bringing your average down).

the best possible penta average will depend more on buffs (and debuffs) than on your gear. food, sub choice, and gear are all important, but once you have a solid setup with enough ACC and ATT to justify using polearm in the first place, most upgrades aren't going to be huge. to illustrate, adding 10 STR to penta only adds something like 1.5% to your WS average.

Hello, sorry for the late post. I found some info that might help you out about my average Penta Thrust WS dmg. I had a merit party the other day and I had a friend parse the results: Character is : 75 SAM/WAR , BRD doing double March, Dia 2, no COR, 1/5STR merits, 5/5 overwhelm merits, Capped Polearm skill, but no merits, Crab sushi always, WS Gear as follows: